Their families have been killed, they live in hiding, but a brave group of Syrians continue to defy Islamic State by reporting its atrocities to the world. The director of a new documentary explains how he told their shocking stories

When Feidin Santana filmed Walter Scott’s death, it marked a turning point in the US civil rights movement – and in Santana’s life. He and others who have taken the law into their own hands tell their stories

Feidin Santana recalls capturing video of the moment, on 4 April 2015, that Walter Scott, an unarmed 50-year-old black man, was shot in the back and killed by white police officer Michael Slager in North Charleston – a shooting that prompted widespread public outcries and protests. Warning: contains distressing images

The video-streaming platform could, say some big-name supporters, be the killer app for citizen journalists, allowing them to broadcast world-changing events live to the planet. So our correspondent in Kent went out in search of some hot news

Andrew Martin: The controlled demolition of Didcot power station’s vast cooling towers makes for extremely compelling viewing – and YouTube is full of similar clips. Why are we so drawn to this spectacle?